Color coated Galvanized Cold rolled Steel coil

Color coated Galvanized Cold rolled Steel coil System 1

Color coated Galvanized Cold rolled Steel coil System 2

Color coated Galvanized Cold rolled Steel coil System 3

Color coated Galvanized Cold rolled Steel coil

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 300 m.t./month

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Grade	Chemical composition %
	C	Si	Mn	P	S	Alta	Ti	Nb
	No more than	No more than	No more than	No more than	No more than	No less than	No more than	No more than
DC51D+Z,DC51D+ZF	0.1	---	0.5	0.035	0.035	---	---	---
(St01Z,St02Z,St03Z)	0.1	---	0.5	0.035	0.035	---	---	---


Grade	Mechanical properties						plating adhesion
	yield strength	tensile strength	n 90	r 90	Elongation %			Plating weight(g/m 2 )
	Mpa	Mpa	No less than	No less than	No less than			Bending diameter
								(a=thickness of slab)
					L 0 =80mm b=20mm
					Normal thickness mm
					≤ 0.7	>0.7		≤ 140/140	>140/140~	>175/175
					≤ 0.7	>0.7		≤ 140/140	175/175	>175/175
DC51D+Z(St01Z,St02Z,St03 Z), DC51D+ZF	---	270~500	---	---	20	22		0a	1a	2a
Exposure Test :						Salt Spray Test :
Exposure Test :						Salt Spray Test :
Environment	GI					Enviroment	GI Average Corrosion		AL-ZN Average Corrosion
	Average corrosion						GI Average Corrosion		AL-ZN Average Corrosion
	g/m2 /y	μ m/y					g/m2/y	um/y	g/m2/y	um/y
Tough Marine Climate	140	9.8				tough Marine Climate	140	9.8	16	2.2
Moderate Marine Climate	18	1.3				Modeerate Marine Climate	18	1.3	4	0.54
Industrial Climate	20	1.4				Industrial Climate	20	1.4	4.2	0.57
Countryside Climate	4	0.28				Countryside Climate	4	0.28	1.3	0.17
Plainness of hot dip galvanized substrate A.2.1 For steel sheet with a specified minimum yield strength less than 260MPa, the maximum plainness tolerance should be in conformity with the stipulations of Table A1.
MPa	Nominal width	Plainness (mm) for the nominal thickness as shown below
		Common precise PF.A			High-level precision PF.B
		<0.70	0.70~<1.60	1.60~3.0	<0.70	0.70~<1.60	1.60~3.0
<260	<1200	10	8	8	5	4	3
	1200~<1500	12	10	10	6	5	4
	≥1500	17	15	15	8	7	6
For steel sheet and steel strip with a specified minimum yield strength not less than 260MPa but less than 360MPa,and the grades of DC51+Z/Z DD51D+Z /S550GD+Z/ZF), the maximum plainness tolerance should be in conformity with the stipulations of Table A2. Table A2

MPa	Nominal width	Plainness (mm) for the nominal thickness as shown below
		Common precise PF.A			High-level precision PF.B
		<0.70	0.70~<1.60	1.60~3.0	<0.70	0.70~<1.60	1.60~3.0
260~<360	<1200	13	10	10	8	6	5
	1200~<1500	15	13	13	9	8	6
	≥1500	20	19	19	12	10	9
Thickness tolerance for hot dip galvanized substrate
Thickness tolerance for hot dip galvanized substrate
For steel sheet with a specified minimum yield strength less than 260MPa, the maximum thickness tolerance should be in conformity with the stipulations of Table A6.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.04	±0.05	±0.06	±0.030	±0.035	±0.040
>0.40~0.60	±0.04	±0.05	±0.06	±0.035	±0.040	±0.045
>0.60~0.80	±0.05	±0.06	±0.07	±0.040	±0.045	±0.050
>0.80~1.00	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>1.00~1.20	±0.07	±0.08	±0.09	±0.050	±0.060	±0.070
>1.20~1.60	±0.10	±0.11	±0.12	±0.060	±0.070	±0.080
>1.60~2.00	±0.12	±0.13	±0.14	±0.070	±0.080	±0.090
>2.00~2.50	±0.14	±0.15	±0.16	±0.090	±0.100	±0.110
>2.50~3.00	±0.17	±0.17	±0.18	±0.110	±0.120	±0.130
For steel sheet and steel strip with a specified minimum yield strength not less than 260MPa but less than 360MPa, the thickness tolerance should be in conformity with the stipulations of Table A7.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.05	±0.06	±0.07	±0.035	±0.040	±0.045
>0.40~0.60	±0.05	±0.06	±0.07	±0.040	±0.045	±0.050
>0.60~0.80	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>0.80~1.00	±0.07	±0.08	±0.09	±0.050	±0.060	±0.070
>1.00~1.20	±0.08	±0.09	±0.11	±0.060	±0.070	±0.080
>1.20~1.60	±0.11	±0.13	±0.14	±0.070	±0.080	±0.090
>1.60~2.00	±0.14	±0.15	±0.16	±0.080	±0.090	±0.110
>2.00~2.50	±0.16	±0.17	±0.18	±0.110	±0.120	±0.130
>2.50~3.00	±0.19	±0.20	±0.20	±0.130	±0.140	±0.150
For steel sheet and steel strip with a specified minimum yield strength not less than 360MPa, but less than or equal to 420 MPa, the thickness tolerance should be in conformity with the stipulations of Table A8.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.05	±0.06	±0.07	±0.040	±0.045	±0.050
>0.40~0.60	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>0.60~0.80	±0.07	±0.08	±0.09	±0.050	±0.060	±0.070
>0.80~1.00	±0.08	±0.09	±0.11	±0.060	±0.070	±0.080
>1.00~1.20	±0.10	±0.11	±0.12	±0.070	±0.080	±0.090
>1.20~1.60	±0.13	±0.14	±0.16	±0.080	±0.090	±0.110
>1.60~2.00	±0.16	±0.17	±0.19	±0.090	±0.110	±0.120
>2.00~2.50	±0.18	±0.20	±0.21	±0.120	±0.130	±0.140
>2.50~3.00	±0.22	±0.22	±0.23	±0.140	±0.150	±0.160
For steel sheet and steel strip with a specified minimum yield strength not less than 420MPa, but less than or equal to 900 MPa, the thickness tolerance should be in conformity with the stipulations of Table A9.

Nominal thickness	Thickness tolerance while the widths are showed as follows
	Common precise PT.A			High-level precision PT.B
	≤1200	>1200~1500	>1500	≤1200	>1200~1500	>1500
0.30~0.40	±0.06	±0.07	±0.08	±0.045	±0.050	±0.060
>0.40~0.60	±0.06	±0.08	±0.09	±0.050	±0.060	±0.070
>0.60~0.80	±0.07	±0.09	±0.11	±0.060	±0.070	±0.080
>0.80~1.00	±0.09	±0.11	±0.12	±0.070	±0.080	±0.090
>1.00~1.20	±0.11	±0.13	±0.14	±0.080	±0.090	±0.110
>1.20~1.60	±0.15	±0.16	±0.18	±0.090	±0.110	±0.120
>1.60~2.00	±0.18	±0.19	±0.21	±0.110	±0.120	±0.140
>2.00~2.50	±0.21	±0.22	±0.24	±0.140	±0.150	±0.170
>2.50~3.00	±0.24	±0.25	±0.26	±0.170	±0.180	±0.190
Width tolerance
Width tolerance
Nominal width	Width tolerance		Width tolerance of the hot-dip zinc, hot-dip alu-zinc coated alloy steel sheets should conform to relevant parameters designed by A12.
	Common precise PW.A	High-level precision PW.B
≤1200	0~+5	0~+2
>1200~1500	0~+6	0~+2
>1500	0~+7	0~+3

Q: How are steel coils used in the production of aerospace parts?: Due to their strength, durability, and versatility, steel coils find extensive use in the aerospace industry for the production of aerospace parts. Made from high-quality carbon steel, these coils are formed into a coil shape, facilitating their transportation and storage. In the aerospace sector, steel coils play a crucial role in manufacturing different components, including structural parts, engine parts, landing gear, and fasteners. Specifically, steel coils are extensively employed in the fabrication of aircraft frames and fuselage structures. These coils are often cut, shaped, and welded to create the necessary structural components, which contribute to the aircraft's strength and stability. Another significant application of steel coils in aerospace production is the manufacturing of engine parts. Complex shapes are formed from the processed steel coils to produce components like turbine blades, shafts, and casings. These components must withstand high temperatures, pressure, and stress, and steel coils possess the requisite strength and heat resistance for such demanding applications. Furthermore, steel coils find utility in the production of landing gear, which supports the aircraft during takeoff, landing, and ground operations. The processed steel coils are shaped into various parts of the landing gear system, including struts, beams, and brackets. These components undergo rigorous testing and require excellent strength, toughness, and fatigue resistance, all of which are provided by steel coils. Additionally, steel coils are commonly employed in the manufacturing of fasteners essential for aerospace applications. Bolts, screws, and rivets play a crucial role in joining different components together, ensuring structural integrity and safety. Steel coils are processed and formed into the desired shapes for these fasteners, offering the necessary strength and reliability for these critical connections. In summary, steel coils are indispensable in the production of aerospace parts due to their exceptional mechanical properties and reliability. Their versatility enables various shaping and processing techniques, allowing for the creation of complex and high-performance components. By incorporating steel coils into aerospace manufacturing, the industry can ensure the production of durable, safe, and efficient aircraft.

Q: What is the average price of a steel coil?: The average price of a steel coil can vary depending on several factors such as the type of steel, the thickness and width of the coil, the market demand, and the location of purchase. Generally, the price can range from $500 to $1500 per metric ton. However, it is important to note that prices are subject to fluctuations in the steel market, which can be influenced by global economic conditions, trade policies, and supply-demand dynamics. Therefore, it is advisable to consult with steel suppliers or monitor market trends to get the most accurate and up-to-date pricing information.

Q: how come when i put steel legs in lowest price in grand exchange no one buys them i got 101 steel legs in there and there at lowest price and they have been there for 3 days: Rune and Dragon are way better. Nobody uses steel legs, you should get some higher level in magic to high alch them. They bring like 700gp a piece that way

Q: What are the common surface defects found in steel coils?: There are several common surface defects that can be found in steel coils. One of the most common defects is rust or corrosion. This occurs when moisture comes into contact with the steel surface, causing it to oxidize and form rust. Another common defect is scratches or abrasions, which can occur during the handling or transportation of the coils. These can range from minor surface scratches to deeper gouges that can affect the structural integrity of the steel. In addition, there can be surface roughness or unevenness, which can be caused by improper rolling or cooling processes during manufacturing. This can result in an inconsistent surface texture that may impact the appearance and performance of the steel. Another defect is scale, which is a layer of oxide that forms on the surface of the steel during the manufacturing process. This can give the steel a rough and uneven appearance. Finally, there can be oil or grease stains on the surface of the steel, which can occur during the manufacturing or handling process. These stains can affect the adhesion of paints or coatings applied to the steel. Overall, these common surface defects in steel coils can impact the quality, appearance, and performance of the steel, and may require remedial actions such as cleaning, grinding, or recoating to resolve.

Q: How are steel coils used in the production of construction materials?: Steel coils are used in the production of construction materials as they serve as the raw material for various applications. These coils are processed and shaped into different forms, such as beams, bars, or sheets, which are then used to create structural components like columns, beams, and walls. Additionally, steel coils are also employed in the manufacturing of roofing materials, pipes, and other essential construction elements. Overall, steel coils are crucial in providing strength, durability, and structural integrity to construction materials.

Q: What are the different methods of embossing steel coils?: There are several methods of embossing steel coils, including roller embossing, heat embossing, and laser embossing. Roller embossing involves using engraved rollers to press a pattern onto the steel surface. Heat embossing uses heat and pressure to create raised designs on the steel coils. Laser embossing utilizes laser technology to etch intricate patterns onto the steel surface. These methods allow for the creation of unique textures and designs on steel coils for various applications.

Q: How are steel coils used in the production of bridges?: Steel coils are used in the production of bridges as they provide a reliable and strong structural material. These coils are shaped and formed into various components, such as beams and girders, which are then assembled to create the bridge's framework. The steel coils' durability and high tensile strength make them ideal for supporting heavy loads and withstanding the forces experienced by bridges.

Q: What are the common storage defects in steel coils?: Common storage defects in steel coils include corrosion, rusting, surface damage (such as scratches or dents), coil slippage or misalignment, coil edge damage, and moisture or water damage. These defects can occur due to improper storage conditions, handling, or exposure to environmental factors. Regular inspection and proper storage practices are essential to prevent these defects and maintain the quality of steel coils.

Q: What are the common methods of handling steel coils during production?: The common methods of handling steel coils during production include using overhead cranes, forklifts, and coil tongs. These tools are utilized to lift, transport, and position the coils within the production facility. Additionally, coil cars and transfer systems are often used to move the coils between different stages of the production process. It is crucial to handle the steel coils with care to prevent damage and ensure efficiency in the production line.

Q: Is there a difference between hot rolled and cold rolled steel coils?: Yes, there is a significant difference between hot rolled and cold rolled steel coils. Hot rolled steel coils are produced at high temperatures and are typically used for applications that require malleability and ductility. On the other hand, cold rolled steel coils are produced at room temperature and undergo a process that results in a smoother, more precise finish. Cold rolled steel coils are often used in applications that require a higher degree of strength and surface quality.

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